Bismuth iodide oxide

Crystal structure
__ Bi 3+      __ I -      __ O 2−
General
Surname	Bismuth iodide oxide
other names	Bismuth oxide iodide
Ratio formula	BiIO
Brief description	red solid
External identifiers / databases
CAS number 7787-63-5 EC number 232-126-9 ECHA InfoCard 100.029.206 PubChem 6367235 Wikidata Q56277982
properties
Molar mass	351.88 g mol −1
Physical state	firmly
density	8.0 g cm −3
Melting point	300 ° C (decomposition)
safety instructions
GHS hazard labeling no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Bismuth iodide oxide is an inorganic chemical compound made up of bismuth , iodine and oxygen .

Extraction and presentation

Bismuth iodide oxide can be obtained by reacting bismuth (III) oxide with hydriodic acid.

${\displaystyle \mathrm {Bi_{2}O_{3}+2\ HI\longrightarrow 2\ BiOI+H_{2}O} }$

properties

Bismuth iodide oxide forms a brick-red crystalline powder or copper-colored crystals. It is insoluble in water and ethanol , is only slightly attacked by water even when heated, and when red heat melts with decomposition. It has a tetragonal crystal structure (isotype with bismuth chloride oxide ) with the space group P 4 / nmm (space group no. 129) .

Individual evidence

1. ↑ ^{a b c d e} Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 600.
2. ^ William M. Haynes: CRC Handbook of Chemistry and Physics, 93rd Edition . CRC Press, 2012, ISBN 1-4398-8049-2 , pp. 4–52 ( limited preview in Google Book Search).
3. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
4. ^ Jean d'Ans, Ellen Lax, Roger Blachnik: Pocket book for chemists and physicists . Springer DE, 1998, ISBN 3-642-58842-5 , pp. 340 ( limited preview in Google Book search).